Home / 20,733.61-28,629.27-16,905.88

Finding the Fourth Proportional to 20,733.61, 28,629.27 and 16,905.88

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Solution

The fourth proportional to 20,733.61, 28,629.27 and 16,905.88 is: 23,343.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.61 : 28,629.27 = 16,905.88 : x
  2. Step 2: Convert to fraction form
    20,733.61/28,629.27 = 16,905.88/x
  3. Step 3: Cross multiply
    20,733.61x = 28,629.27 × 16,905.88
  4. Step 4: Simplify right side
    20,733.61x = 484,003,003.11
  5. Step 5: Solve for x
    x = 484,003,003.11/20,733.61
  6. Step 6: Final answer
    x = 23,343.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.